Granted Patent
Utility
US 4,862,189 · App. 07/254,472
Microwave transformer
Inventor:
Thomas E. Morgan
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Oct 24, 1988
Inventor
Thomas E. Morgan
Assignee (at issue)
The Marconi Company Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.